Highly efficient iridium(III) phosphors with phenoxy-substituted ligands and their high-performance OLEDs
文献类型：期刊论文
| 作者 | Tan GP ; Chen SM ; Sun N ; Li YH ; Fortin D ; Wong WY ; Kwok HS ; Ma DG ; Wu HB ; Wang LX ; Harvey PD |
| 刊名 | journal of materials chemistry c
 |
| 出版日期 | 2013 |
| 卷号 | 1期号:4页码:808-821 |
| 关键词 | LIGHT-EMITTING-DIODES MOLECULAR-ORBITAL METHODS COMPACT EFFECTIVE POTENTIALS DENSITY-FUNCTIONAL THEORY EXPONENT BASIS-SETS GAUSSIAN-TYPE BASIS IR-III COMPLEXES 3RD-ROW ATOMS ELECTROLUMINESCENT DEVICES PHOTOPHYSICAL PROPERTIES |
| ISSN号 | 2050-7526 |
| 通讯作者 | tan gp |
| 中文摘要 | two new iridium(iii) cyclometallated complexes (1 and 2) based on the 2-(1-phenoxy-4-phenyl)-5-methylpyridine ligand have been developed. by attaching a flexible phenoxy group on the phenyl ring of 2-phenylpyridine (hppy), the light-emitting properties of the resulting iriii complexes have been improved, while the introduction of an electron-donating methyl group on the pyridyl ring of hppy can keep the triplet emission in the green region by compensating for the reduced energy gap caused by the phenoxy group. owing to the unique electronic structures induced by the ligand, the vacuum-evaporated organic light-emitting devices (oleds) of the type [ito/npb (40 nm)/(1 or 2): cbp (20 nm)/ bcp (10 nm)/alq3 (30 nm)/lif (1 nm)/al (100 nm)] furnished peak oled efficiencies at 10.0%, 31.1 cd a(-1) and 14.5 lm w-1 for 1 and 11.7%, 38.1 cd a(-1) and 31.8 lm w-1 for 2. by replacing the electron-injection/electron-transporting materials (bcp and alq3) with tpbi, the green-emitting devices based on 1 gave outstanding peak efficiencies at 22.5%, 76.2 cd a(-1) and 72.8 lm w-1. extremely high peak efficiencies of 24.5%, 84.6 cd a(-1) and 77.6 lm w-1 were even obtained for the 2-doped devices and both of them are superior in performance to the benchmark dopants ir(ppy) 3 and ir(ppy) 2(acac). moreover, polymer light-emitting devices were also fabricated using 1 and 2 via the spin-coating method, and their device performances are characterized by 14.4%, 39.5 cd a(-1) and 12.4 lm w-1 for 1 and 12.6%, 29.6 cd a(-1) and 18.1 lm w-1 for 2. when 2 was used to make three-color white-light oleds, respectable device efficiencies of 15.3 cd a(-1), 7.5% and 9.1 lm w-1 were achieved and their white color cie coordinates are improved relative to ir(ppy)(3). |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000314803400025 |
| 公开日期 | 2014-04-18 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/50379]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Tan GP,Chen SM,Sun N,et al. Highly efficient iridium(III) phosphors with phenoxy-substituted ligands and their high-performance OLEDs[J]. journal of materials chemistry c,2013,1(4):808-821. |
| APA | Tan GP.,Chen SM.,Sun N.,Li YH.,Fortin D.,...&Harvey PD.(2013).Highly efficient iridium(III) phosphors with phenoxy-substituted ligands and their high-performance OLEDs.journal of materials chemistry c,1(4),808-821. |
| MLA | Tan GP,et al."Highly efficient iridium(III) phosphors with phenoxy-substituted ligands and their high-performance OLEDs".journal of materials chemistry c 1.4(2013):808-821. |
入库方式： OAI收割
来源：长春应用化学研究所
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